CVE-2021-41832 - Improper Verification of Cryptographic Signature

Severity

75%

Complexity

39%

Confidentiality

60%

It is possible for an attacker to manipulate documents to appear to be signed by a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25635 for the LibreOffice advisory.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N).

Demo Examples

Improper Verification of Cryptographic Signature

CWE-347

In the following code, a JarFile object is created from a downloaded file.


               
JarFile jf = new JarFile(f);

The JAR file that was potentially downloaded from an untrusted source is created without verifying the signature (if present). An alternate constructor that accepts a boolean verify parameter should be used instead.

Overview

First reported 3 years ago

2021-10-11 08:15:00

Last updated 3 years ago

2021-10-19 17:52:00

Affected Software

Apache Software Foundation OpenOffice

References

N/A

[announce] 20211010 CVE-2021-41832: Apache OpenOffice: Content Manipulation with Certificate Validation Attack

N/A

Mailing List, Vendor Advisory

[announce] 20211010 CVE-2021-41832: Apache OpenOffice: Content Manipulation with Certificate Validation Attack

Mailing List, Vendor Advisory

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